package com.atguigu.lease.web.admin.service.impl;

import com.atguigu.lease.common.constant.RedisConstant;
import com.atguigu.lease.common.exceptions.LeaseException;
import com.atguigu.lease.common.result.ResultCodeEnum;
import com.atguigu.lease.common.utils.JwtUtil;
import com.atguigu.lease.model.entity.SystemUser;
import com.atguigu.lease.model.entity.UserInfo;
import com.atguigu.lease.model.enums.BaseStatus;
import com.atguigu.lease.web.admin.service.LoginService;
import com.atguigu.lease.web.admin.service.SystemUserService;
import com.atguigu.lease.web.admin.service.UserInfoService;
import com.atguigu.lease.web.admin.vo.login.CaptchaVo;
import com.atguigu.lease.web.admin.vo.login.LoginVo;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.wf.captcha.SpecCaptcha;
import com.wf.captcha.base.Captcha;
import org.apache.commons.codec.digest.DigestUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Service;

import java.rmi.dgc.Lease;
import java.util.UUID;
import java.util.concurrent.TimeUnit;

@Service
public class LoginServiceImpl implements LoginService {
    @Autowired
    private RedisTemplate redisTemplate;
    @Autowired
    private SystemUserService systemUserService;

    @Override
    public CaptchaVo getCaptcha() {
        //生成验证码
        SpecCaptcha specCaptcha=new SpecCaptcha(130,48,4);
        //设置验证码类型，导入的依赖提供的
        specCaptcha.setCharType(Captcha.TYPE_DEFAULT);
        //验证码的值
        String text = specCaptcha.text();
        System.out.println("text = " + text);
        //严重码图片用Base64转成字符串
        String image = specCaptcha.toBase64();
        System.out.println("image = " + image);
        //保存在Redis的key
        String key= RedisConstant.ADMIN_LOGIN_PREFIX + UUID.randomUUID().toString();
        System.out.println("key = " + key);
        //调用redis的方法
        redisTemplate.opsForValue().set(key,text,RedisConstant.ADMIN_LOGIN_CAPTCHA_TTL_SEC, TimeUnit.SECONDS);
        System.out.println("-----查询的结果 = " + redisTemplate.opsForValue().get(key));
        return new CaptchaVo(image,key);
    }

    @Override
    public String login(LoginVo loginVo) {
        //判断验证码是否正确
        String value= (String) redisTemplate.opsForValue().get(loginVo.getCaptchaKey());
        if (value==null){
            throw new LeaseException(ResultCodeEnum.ADMIN_CAPTCHA_CODE_EXPIRED);
        }
        if (!value.equalsIgnoreCase(loginVo.getCaptchaCode())){
            throw new LeaseException(ResultCodeEnum.ADMIN_CAPTCHA_CODE_ERROR);
        }
        //判断账号密码
        LambdaQueryWrapper<SystemUser> userInfoLambdaQueryWrapper=new LambdaQueryWrapper<>();
        userInfoLambdaQueryWrapper.eq(SystemUser::getUsername,loginVo.getUsername());
        SystemUser systemUser = systemUserService.getOne(userInfoLambdaQueryWrapper);
        if(systemUser==null){
            throw new LeaseException(ResultCodeEnum.ADMIN_ACCOUNT_NOT_EXIST_ERROR);
        }
        if(systemUser.getStatus()== BaseStatus.DISABLE){
            throw new LeaseException(ResultCodeEnum.ADMIN_ACCOUNT_DISABLED_ERROR);
        }
        String password= DigestUtils.md5Hex(loginVo.getPassword());
        if (!systemUser.getPassword().equals(password)){
            throw new LeaseException(ResultCodeEnum.ADMIN_ACCOUNT_ERROR);
        }
        return JwtUtil.createToken(systemUser.getId(),systemUser.getUsername());
    }
}
